David Nalbandian has an impressive clay court record of 138–69 across 207 matches (66.7% — strong). A win rate of that calibre over 207 matches is a reliable indicator of genuine quality on this surface. 4 titles on clay: Estoril, Munich, Buenos Aires — a record that reflects consistent ability to close out tournaments on this surface.

At Grand Slam level (Roland Garros): a positive 20–8 (71.4%) across 28 matches — a player who generally rises to the occasion at the Slams on clay.

ATP Masters 1000 on clay (Monte Carlo, Madrid, Rome): a positive 31–20 (60.8%) across 51 matches — winning above .500 at this level, week in week out, is a genuine sign of quality on clay.

8 finals reached on clay — won 4, lost 4 (solid 50% conversion) — consistently getting to finals and winning the majority is a hallmark of elite performers on clay. 17 semifinals. 28 quarterfinals.

vs. Top 10 on clay: 3–18 (14.3%, 21 matches). Top 10 opponents have represented a clear ceiling on clay; addressing that deficit is the single biggest lever for improving the overall record here.

By format on clay — best-of-five: 31–11 (73.8%); best-of-three: 107–58 (64.8%). Significantly better in five-set matches — a strong physical profile on clay that tends to tell as matches and tournaments progress.

Best season: 2010 — 5–1 (83.3%) from 6 matches. The best single-season display to date — a useful reference point as the clay record continues to develop.